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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 20. Отображено 20.
09-05-2023 дата публикации

Preparation method of high-energy-absorption layered sandwich protection structure

Номер: CN116080182A
Автор: ZHANG QIANG, SUN KAI, WEI GUOLIANG, WEI ZENGYAN, GENG JIAYI, YANG WENSHU, XIU ZIYANG, CHEN GUOQIN, JIANG LONGTAO, WU GAOHUI
Принадлежит:

The invention discloses a preparation method of a high-energy-absorption layered sandwich protection structure, and relates to a preparation method of an energy-absorption protection structure. The problem that an existing anti-impact protection structure is poor in energy absorption effect is solved. The method comprises the following steps: weighing hollow balls and the balance of aluminum ingots; screening and drying the hollow spheres, then placing the hollow spheres in a steel mold, compacting, and preheating to obtain a preheated prefabricated body; infiltrating the preheated prefabricated body into molten aluminum on a press machine to obtain a hollow sphere porous aluminum-based composite material core plate; and the face plate, the core plate and the back plate are stacked and glued through an epoxy resin adhesive, and finally drying is conducted. According to the protection structure, the porous composite material with higher strength and higher energy absorption capacity is adopted ...

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Номер записи: 1
11-07-2023 дата публикации

Method for preparing diamond/metal composite material at high flux

Номер: CN116408435A
Автор: ZHANG QIANG, ZHU PING, MA YIFU, GOU HUASONG, YANG WENSHU, WANG PINGPING, XIU ZIYANG, CHEN GUOQIN, WU GAOHUI
Принадлежит:

The invention relates to a method for preparing a diamond/metal composite material, in particular to a method for preparing a diamond/metal composite material in a high-throughput mode. The problem that the research efficiency and the material preparation efficiency of the research and preparation process of an existing diamond/metal composite material are low is solved. The method comprises the steps of raw material preparation, diamond particle high-flux pretreatment, mold filling, preheating and vacuum degassing and air pressure infiltration. Crucibles made of different wave-transparent materials are adopted in the process of pretreating the diamond particles through microwaves, different heating temperatures can be obtained in single treatment, and high-flux pretreatment of the diamond particles is achieved; diamond particles with different particle sizes, different coating types and different coating thicknesses can be added into the near-net forming mold in the preform structure, ...

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Номер записи: 2
04-08-2023 дата публикации

Wafer automatic transmission method

Номер: CN116544160A
Автор: WU XIAN, ZHOU LIPING, LIN BOQI, CHEN GUOQIN
Принадлежит:

The invention discloses an automatic wafer transmission method, which comprises an automatic unloading process and an automatic loading process, and the automatic unloading process comprises the following steps: S1, disassembling a slide glass substrate after the process is completed into a base and a circular ring with a wafer; s2, automatically identifying shielding and distribution conditions of obstacles on the circular ring to the wafer, and judging whether to continue an automatic unloading process or not according to an identification result; S3, transferring the wafer to a wafer unloading device after calibration, and synthesizing the circular ring and a base into a pedestal; the automatic loading comprises the steps that S4, the base is disassembled and assembled into a circular ring and a base, and a new wafer is taken for calibration; s5, automatically identifying the shielding and distribution conditions of obstacles on the circular ring to the wafer, and judging whether the ...

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Номер записи: 3
26-05-2023 дата публикации

Preparation method of multiphase interface high-thermal-conductivity diamond/aluminum composite material

Номер: CN116162819A
Автор: ZHANG QIANG, ZHU PING, SUN KAI, YANG WENSHU, GOU HUASONG, WANG PINGPING, CHEN GUOQIN, JIANG LONGTAO, WU GAOHUI
Принадлежит:

The invention relates to a preparation method of a diamond/aluminum composite material, in particular to a preparation method of a multiphase interface high-thermal-conductivity diamond/aluminum composite material. The problems that in a diamond/aluminum composite material, wettability of diamond and an aluminum matrix is poor, and heat conductivity is low are solved. The method comprises the following steps: weighing diamond particles and aluminum blocks; mixing nitrate with the diamond particles, and carrying out etching treatment on the surfaces of the diamond particles by utilizing molten nitrate; a metal coating is plated on the surface of diamond, high-temperature short-time sintering is carried out by adopting a spark plasma sintering method, and the diamond/aluminum composite material prepared by utilizing an air pressure infiltration method has the characteristic of a multi-phase interface and shows excellent heat-conducting property; according to the method, the molten nitrate ...

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Номер записи: 4
04-07-2023 дата публикации

Photocathode protection controllable modification method for B4C ceramic reinforcement particles

Номер: CN116377274A
Автор: JIANG LONGTAO, HAN HUIMIN, CHAO ZHENLONG, WANG CHUNYU, CHEN GUOQIN, XIU ZIYANG, WU GAOHUI
Принадлежит:

The invention discloses a photocathode protection controllable modification method for B4C ceramic reinforcement particles, and relates to a B4C particle modification method. The problems that an existing preparation method of a TiO2 transition layer in a composite material is complex in process, harsh in condition and uncontrollable in synthesis are solved. According to the preparation method, a titanate hydrolysis method is utilized, a titanate solution and B4C powder are fully mixed by using a stirrer, the surface of the B4C powder is uniformly coated with a layer of titanium source, and TiO2 particles which are uniformly distributed can be generated on the surface of the B4C powder after titanate hydrolysis. The method has the advantages of simple equipment, controllable result, high cost performance, high yield, safety, no environmental pollution and the like. The prepared modified B4C powder can be used for preparing a photocathode protection composite material, and TiO2 nanoparticles ...

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Номер записи: 5
04-07-2023 дата публикации

Preparation method of high-toughness B4C/Al composite material with reverse nacre mother-of-pearl structure

Номер: CN116377268A
Автор: JIANG LONGTAO, HAN BYEONG-TAK, CHAO ZHENLONG, WANG PINGPING, CHEN GUOQIN, KANG PENGCHAO, XIU ZIYANG, HAN HUIMIN
Принадлежит:

The invention relates to a preparation method of a high-toughness B4C/Al composite material with an inverted-nacre mother-of-pearl structure. The invention relates to the field of high-toughness metal-based composite materials, in particular to a high-toughness reverse-nacre-mother-of-pearl structure B4C/Al composite material and a preparation method thereof. The invention aims to solve the problems that the existing metal-based composite material with the anti-nacre structure is difficult to prepare, and the microstructure is difficult to regulate and control. The method comprises the following steps: 1, preparing core-shell structure composite B4C/Al powder; secondly, the composite B4C/Al powder of the core-shell structure is infiltrated into molten aluminum; and 3, carrying out hot extrusion on the B4C/Al composite material. According to the preparation method disclosed by the invention, regulation and control on the thickness of the brick and the mud and the strength of the mud of the ...

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Номер записи: 6
08-09-2017 дата публикации

Device for preparing metal or alloy wire rods and method for preparing metal or alloy wire rods by using device

Номер: CN0107138698A
Автор: WU GAOHUI, YU ZHENHE, YANG WENSHU, ZHANG QIANG, XIU ZIYANG, JIANG LONGTAO, CHEN GUOQIN, QIAO JING, KANG PENGCHAO, GOU HUASONG
Принадлежит:

... 种金属或合金线材制备装置及用该装置制备金属或合金线材的方法。本发明涉及种线材制备装置及制备方法。本发明的目的是为了解决金属及合金线材制备工艺复杂，效率低，能耗大的问题。装置：由金属液箱体、冲头、金属液流出孔、喷嘴、喷嘴控温件、冷却喷雾头和保温炉壁组成；所述金属液箱体由金属液腔壁和石墨底组成；所述冲头由竖直部和水平石墨部组成。方法：、对金属液箱体进行加热保温；二、对喷嘴进行控温；三、熔化金属液；四、加压挤出；五、冷却凝固，得到金属或合金线材。本发明方法过程简单，效率高，能耗低。装置可通过调整金属液流出孔及喷嘴孔道的尺寸和形状制备各种直径尺寸的线材和具有特殊横截面的金属制品，通用性高。 ...

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Номер записи: 7
02-06-2023 дата публикации

In-situ preparation method of diamond and silicon carbide mixed reinforced high-thermal-conductivity and high-strength aluminum matrix composite

Номер: CN116200626A
Автор: ZHANG QIANG, ZHU PING, ZHOU YONGXIAO, YANG WENSHU, GOU HUASONG, XIU ZIYANG, CHEN GUOQIN, JIANG LONGTAO, WU GAOHUI
Принадлежит:

The invention discloses an in-situ preparation method of a diamond and silicon carbide mixed reinforced high-thermal-conductivity and high-strength aluminum-based composite material, and relates to a preparation method of a high-strength diamond/aluminum composite material. The problems that a diamond/aluminum composite material is poor in interface bonding and has brittleness and an interface product Al4C3 easy to hydrolyze are solved. The method comprises the following steps: weighing diamond and an aluminum alloy block, and carrying out etching treatment on the diamond by using hydrogen plasma; the obtained diamond particles are placed in a mold and compacted through vibration, and a prefabricated body is obtained; and the prefabricated body is hoisted in an air pressure infiltration furnace for air pressure infiltration, demolding is conducted, the diamond/aluminum composite material is obtained, and annealing treatment is conducted. According to the method, the surfaces of the diamond ...

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Номер записи: 8
29-08-2023 дата публикации

Method for preparing graphene/aluminum-based composite material with assistance of fatty acid compound containing carboxyl and carbon-carbon double bonds

Номер: CN116652185A
Автор: JU BOYU, SUN JINPENG, HAN ZHICHAO, XIU ZIYANG, YANG WENSHU, WANG PINGPING, WU GAOHUI, JIANG LONGTAO, ZHANG QIANG, CHEN GUOQIN, KANG PENGCHAO, WEI ZENGYAN, QIAO JING
Принадлежит:

The invention discloses a method for preparing a graphene/aluminum-based composite material under the assistance of a fatty acid compound containing carboxyl and carbon-carbon double bonds, and relates to a preparation method of the graphene/aluminum-based composite material. The problem that a defect repairing method of graphene is complex is solved. The method comprises the following steps: weighing graphene, a fatty acid compound containing carboxyl and carbon-carbon double bonds and aluminum metal powder as raw materials; the preparation method comprises the following steps: weighing an aluminum alloy block, dispersing by an ultrasonic-assisted graphene dispersing agent, carrying out ball-milling dispersion on a mixture of graphene and a fatty acid compound containing carboxyl and carbon-carbon double bonds and aluminum metal powder, carrying out preform forming, carrying out aluminum metal infiltration and graphene defect regulation, carrying out severe plastic deformation treatment ...

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Номер записи: 9
02-05-2023 дата публикации

Preparation method of graphene-silicon nitride synergistically reinforced aluminum-based composite material

Номер: CN116037930A
Автор: JU BOZI, YANG WENSHU, WU GAOHUI, JIANG LONGTAO, ZHANG QIANG, CHEN GUOQIN, KANG PENGCHAO, XIU ZIYANG, WANG PINGPING, WEI ZENGYAN, QIAO JING, HAN XIULI
Принадлежит:

The invention discloses a preparation method of a graphene-silicon nitride synergistically reinforced aluminum-based composite material, and relates to a preparation method of an aluminum-based composite material. The problems that the graphene/aluminum-based composite material is poor in interface bonding strength and prone to interface reaction are solved. The silicon-nitrogen precursor is added to serve as a precursor of in-situ synthesis silicon nitride, compared with direct addition of silicon nitride particles, the silicon-nitrogen precursor is liquid at normal temperature and more easily and uniformly wraps the surfaces of graphene and aluminum metal powder in the dispersion process, nano-scale silicon nitride particles are in-situ synthesis at high temperature, and the in-situ synthesis performance of the graphene and the aluminum metal powder is improved. Graphene-aluminum interface bonding can be more stably improved, and the problem of carbon-aluminum interface reaction in the ...

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Номер записи: 10
18-07-2023 дата публикации

Heat treatment method for improving dimensional stability of metal matrix in long-term temperature fluctuation environment

Номер: CN116445690A
Автор: WU GAOHUI, FU LINLIN, QIAO JING, JIANG LONGTAO, YANG WENSHU, CHEN GUOQIN, ZHANG QIANG, XIU ZIYANG
Принадлежит:

The invention discloses a heat treatment method for improving the dimensional stability of a metal matrix in a long-term temperature fluctuation environment, and relates to a heat treatment method. In order to solve the problem that an existing metal material is poor in dimensional stability, the invention provides the metal material which can release residual internal stress in the metal material and stabilize dislocation, grain boundary and other defect structures in the metal material at the same time, and the metal material which also has high structure stability and stress stability under the temperature fluctuation condition is obtained. The size stability of a metal material for a precise instrument structure material in the service process is improved. The whole treatment process is carried out in a furnace body with protective gas, so that the phenomena of oxidative deterioration and the like of the material in a high-temperature section in the heat treatment process can be avoided ...

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Номер записи: 11
11-08-2023 дата публикации

Feeding system

Номер: CN116572544A
Автор: CHEN GUOQIN, HU YUNBO, MA JI, ZHANG DANDAN
Принадлежит:

The invention is suitable for the technical field of battery heat insulation, and provides a feeding system which comprises a bottom film feeding assembly and a heat insulation cotton feeding assembly. The bottom film feeding assembly comprises a discharging mechanism and a transmission mechanism, a bottom film material roll is placed on the discharging mechanism, and the transmission mechanism is used for driving the bottom film material roll to move towards the heat insulation cotton feeding assembly. The heat insulation cotton feeding assembly comprises a positioning platform, a heat insulation cotton placing platform and a heat insulation cotton moving mechanism, heat insulation cotton is placed on the heat insulation cotton placing platform, the heat insulation cotton moving mechanism is used for moving the heat insulation cotton to the positioning platform, and a bottom film conveyed by the transmission mechanism penetrates through the position under the positioning platform and is ...

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Номер записи: 12
07-07-2023 дата публикации

Method for preparing diamond/aluminum composite material through high-flux near-net forming

Номер: CN116393677A
Автор: ZHANG QIANG, ZHU PING, GOU HUASONG, MA YIFU, YANG WENSHU, WANG PINGPING, XIU ZIYANG, CHEN GUOQIN, WU GAOHUI
Принадлежит:

The invention discloses a method for preparing a diamond/aluminum composite material through high-flux near-net forming, and relates to a preparation method of a diamond-reinforced aluminum-based composite material. The invention aims to solve the problem of low efficiency caused by much time consumption when the influence factors of the thermal conductivity and the mechanical property of the diamond/aluminum composite material are researched. The method comprises the following steps: filling diamond particles into a near-net forming die, and stacking the near-net forming die into an array channel of a spark plasma sintering die for spark plasma sintering; then, the diamond particles are transferred into a near-net forming mold made of graphite to be assembled into a prefabricated body, and air pressure infiltration is conducted; according to the device and the method, high-flux preparation of a heat conductivity sample, a three-point bending sample and a thermal expansion sample of the ...

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Номер записи: 13
01-08-2023 дата публикации

Preparation method of diamond/metal composite material with high thermal conductivity

Номер: CN116516197A
Автор: ZHANG QIANG, ZHU PING, MA YIFU, GOU HUASONG, XIU ZIYANG, YANG WENSHU, CHEN GUOQIN, JIANG LONGTAO, WU GAOHUI
Принадлежит:

The invention relates to a preparation method of a composite material, in particular to a preparation method of a high-thermal-conductivity diamond/metal composite material. The problem that an existing diamond/metal composite material is poor in heat conductivity is solved. The method comprises the steps that a metal coating is prepared on the surfaces of diamond particles, the diamond particles have two particle sizes, the diamond particles with the two particle sizes are alternately arranged in a prefabricated body mold in a layered mode and compacted to obtain a prefabricated body, high-temperature short-time sintering treatment is carried out, and the surface metal coating reacts with diamond to form carbide; and forming a three-dimensional connecting structure among the diamond particles, and carrying out air pressure infiltration. The preparation of the high-thermal-conductivity diamond/metal composite material is realized from multiple perspectives of forming a diamond three-dimensional ...

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Номер записи: 14
30-05-2023 дата публикации

Sheet compounding device and processing equipment

Номер: CN116176096A
Автор: CHEN GUOQIN, MA PEIJUN, MA JI, ZHANG DANDAN
Принадлежит:

The invention discloses a sheet compounding device which comprises a surface compounding mechanism, a long edge compounding mechanism and a short edge compounding mechanism which are sequentially arranged in the conveying direction of a sheet, and the surface compounding mechanism is used for compounding the two surfaces of the sheet with a bottom film and a top film in a hot pressing mode; the long edge compounding mechanism is used for performing hot-pressing compounding on a bottom film and a top film which are positioned outside the long edges of the two sides of the sheet; and the short edge compounding mechanism is used for performing hot-pressing compounding on the bottom film and the top film outside the short edges of the two sides of the sheet. The sheet compounding device is used for compounding a sheet with a bottom film and a top film. The invention further discloses sheet processing equipment which comprises the sheet compounding device.

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Номер записи: 15
04-08-2023 дата публикации

Composite structure, resin film and manufacturing method thereof

Номер: CN116535702A
Автор: CHEN GUOQIN, CAI QIUXIONG, NIU JUNREN, ZHANG LIXUN
Принадлежит:

The invention discloses a composite structure, a resin film and a manufacturing method thereof. The composite structure comprises a release carrier and a resin film, the release carrier comprises a release substrate and a release resin layer, the release resin layer is formed on the release substrate, and the coverage rate of the release resin layer relative to the release substrate ranges from 60% to 100%. The resin film is formed on the release carrier, and the resin film is simultaneously jointed with the release base material and the release resin layer. According to the composite structure, the resin film and the manufacturing method of the resin film, the problem of solvent residues is effectively reduced, and the resin film which is dry in touch feeling, powder in hand feeling and high in extensibility and haze can be obtained.

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Номер записи: 16
04-08-2023 дата публикации

Method for quasi-in-situ characterization of material corrosion morphology

Номер: CN116539650A
Автор: JIANG LONGTAO, HAN HUIMIN, CHAO ZHENLONG, WANG CHUNYU, CHEN GUOQIN, XIU ZIYANG, WU GAOHUI
Принадлежит:

The invention discloses a method for material corrosion morphology quasi-in-situ characterization, and relates to a method for material corrosion morphology characterization. The method aims at solving the problems that an existing material corrosion morphology in-situ characterization method is harsh in test condition, limited in corrosion environment and the like. The method comprises the following steps: pretreating a to-be-corroded sample, marking the position of the to-be-corroded sample, carrying out microstructure characterization on the position-marked sample before corrosion, corroding the sample, cleaning the corroded sample in the step 4, and carrying out dynamic observation on the microstructure characterization morphology again. According to the invention, the diamond indentation of the Vickers hardness tester is used as a mark position, and the material is corroded in a corrosive atmosphere for a plurality of time periods, so that the corrosion morphology of a certain area ...

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Номер записи: 17
07-04-2023 дата публикации

Low-pollution wafer transmission system and transmission method

Номер: CN115939003A
Автор: CHEN GUOQIN, WAN SHENGQIANG, HU FAN, BASSE
Принадлежит:

The invention discloses a low-pollution wafer transmission system which comprises a transfer manipulator, a wafer feeding device, a wafer discharging device, a wafer calibration device and a dismounting device, the wafer feeding device, the wafer discharging device, the wafer calibration device and the dismounting device are all arranged on the outer side of the transfer manipulator, and material transfer is achieved through the transfer manipulator. The dismounting and mounting device comprises a clean cavity, a lifting mechanism, a bearing seat and a slide glass disc calibration mechanism, the bearing seat is arranged in the clean cavity, the lifting mechanism penetrates through the bearing seat, the slide glass base comprises a base body and a cover plate, the base body is provided with an opening, the cover plate covers the opening, the bevel edge of the slide glass base is arranged on the base body, and the slide glass disc calibration mechanism is arranged on the cover plate. And ...

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Номер записи: 18
11-08-2023 дата публикации

Preparation method of in-situ synthesis silicon nitride reinforced aluminum-based composite material

Номер: CN116574936A
Автор: SUN JINPENG, JU BOZI, XIU ZIYANG, YANG WENSHU, WANG PINGPING, WU GAOHUI, JIANG LONGTAO, ZHANG QIANG, CHEN GUOQIN, KANG PENGCHAO, WEI ZENGYAN, QIAO JING
Принадлежит:

The invention discloses a preparation method of an in-situ synthesis silicon nitride reinforced aluminum-based composite material, and relates to a preparation method of an aluminum-based composite material. In order to solve the problems that wettability of silicon nitride and molten aluminum is poor, a bonding interface is poor, silicon nitride is not uniformly dispersed in an aluminum matrix, is easy to gather and is not small enough in size, and plasticity of a prepared silicon nitride reinforced aluminum matrix composite material is reduced. The method comprises the following steps: sequentially weighing a silicon-nitrogen precursor and aluminum powder, carrying out ball-milling dispersion, carrying out cold press molding on a preform, putting the preform into a vacuum atmosphere furnace, and carrying out heating reaction, spark plasma reaction sintering, hot extrusion deformation treatment and component homogenization. According to the method, a silicon nitride ceramic reinforcement ...

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Номер записи: 19
07-07-2023 дата публикации

Preparation method of diamond reinforced aluminum-based composite material with high corrosion resistance

Номер: CN116397126A
Автор: ZHANG QIANG, ZHU PING, WEI GUOLIANG, WANG PINGPING, YANG WENSHU, GOU HUASONG, XIU ZIYANG, CHEN GUOQIN, WU GAOHUI
Принадлежит:

The invention relates to a preparation method of a diamond reinforced aluminum-based composite material, in particular to a preparation method of a high-corrosion-resistance diamond reinforced aluminum-based composite material. In order to solve the problem of corrosion failure of the diamond particle reinforced aluminum-based composite material in a complex service environment, generation of an interface product Al4C3 is inhibited. The method comprises the steps that diamond particle surface plating is conducted, specifically, the diamond particles are subjected to segmented heating treatment under the protective atmosphere, a uniform metal plating layer is prepared on the surfaces of the diamond particles through a magnetron sputtering method, and an assembled mold is filled with the diamond particles for air pressure infiltration; the corrosion rate of the diamond/aluminum composite material obtained through the method is reduced by 80% or above compared with that of a treated diamond ...

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Номер записи: 20